Aldridge feels the spine of the team needs to be addressed.
The Reds were bullied as they struggle to adapt to elements and Watford's physical presence, and Aldridge feels that the spine of the squad needs addressing in coming transfer windows.
He wrote in his Liverpool Echo column: "We need more battlers because we’re getting out-fought. It happened against West Brom and it happened again against Watford.
"As the old saying goes, you need to win the individual battles and then the quality shines through. We failed to win those battles at Vicarage Road.
"In terms of positions where we need to buy, you could go right through the spine of the team - centre-half, centre midfield, striker."
For some time it has seemed that Liverpool have lacked that bit of presence and bite that has meant they can win 'arm wrestles' in the middle of the park, while their best performances and results have come from technically very good footballing displays in good conditions - and the knack of winning ugly seems to have deserted them somewhat.
Some will say a glaring omission from Aldridge's wishlist is that of a goalkeeper as both Simon Mignolet and Adam Bogdan have made calamitous errors when they have been called upon.
One can see the sense in the rest of the team though. Up front, while Liverpool do have some proven goalscoring talent there isn't the reliable, natural finisher who can stay fit over the course of the season in their ranks right now, while a big presence in the midfield feels essential, and their problems in defence from the past few years have been well-documented. Injuries, however, are not helping the side's cause in that area as things seem to be a little unsettled.